"> Kaeser Marine Kaeser M 20 200/7
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Kaeser Marine

Kaeser M 20 200/7

Kaeser Marine Kaeser M 20 200/7 is identified in the source list as a service-air compressor. It is normally installed in an engine room or utility machinery space and connected to the vessel's service or control-air distribution system through receivers and air-treatment equipment. Its purpose is to supply compressed air for pneumatic tools, maintenance, general service and other approved shipboard consumers. The existing database record states 7 bar. The machine may be reciprocating or another compressor type depending on the model; the exact construction must be confirmed from manufacturer documentation rather than inferred from the category. The exact series and model designation distinguishes compressor size, speed and arrangement from neighboring variants; delivery and operating limits must be taken from the manufacturer documentation.

Components & Design

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Technical Data

compressor type service_air_compressor
pressure bar 7
capacity nm3h 200
stages 2

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Common failures & inspection points

●Suction or discharge valve leakage caused by carbon deposits, damaged valve plates or wear, resulting in reduced capacity, high stage temperatures or abnormal pulsation
●Piston-ring or cylinder wear caused by inadequate lubrication, contamination or long service, resulting in reduced compression, oil carry-over or extended filling time
●Intercooler or aftercooler fouling and leakage caused by scale, corrosion or poor cooling-water flow, resulting in elevated air temperature or water leakage
●Lubrication failure caused by low oil level, blocked passages or pump problems, resulting in abnormal bearing noise, temperature rise or seizure risk
●Automatic unloading, drain or non-return valve malfunction caused by sticking, contamination or control faults, resulting in difficult starting, pressure backflow or abnormal cycling

Service & Maintenance

Check oil level and condition, cooling-water flow, stage temperatures, valve operation, drains, separators, relief devices and non-return arrangements. Listen for abnormal knocking and compare receiver filling performance with the vessel's established normal condition. Inspect for air, oil and cooling-water leakage and confirm that automatic condensate drains are functioning. Examine drive belts or coupling components where fitted and verify guards are secure. During overhaul, inspect valves, piston rings, cylinders, bearings and coolers for deposits and wear. Refer to the manufacturer documentation for the exact pressures, clearances, valve settings and overhaul criteria.

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Replacement Parts

Keep suction and discharge valve service parts, piston rings, gaskets, seals, filter elements, lubrication consumables and drain or unloader service parts recommended for the installed compressor. Critical vessels commonly require enough parts to restore one compressor after a typical valve or sealing failure. Confirm exact parts against the model and serial number.
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Equipment Model #80755 · ✓ still in production